Tape remains a viable alternative to disk in some situations due to its lower cost per bit. This is a large advantage when dealing with large amounts of data. Though the areal density of tape is lower than for disk drives, the available surface area on a tape is far greater. The highest capacity tape media are generally on the same order as the largest available disk drives (about 5 TB in 2011). Tape has historically offered enough advantage in cost over disk storage to make it a viable product, particularly for backup, where media removability is necessary.
A magnetic disk storage device with more capacity than a floppy disk is typically a hard disk drive (HDD). Unlike floppy disks, which generally hold 1.44 MB, HDDs can store vast amounts of data, often ranging from hundreds of gigabytes to several terabytes. They use magnetic storage to read and write data on rotating disks, making them suitable for storing large files and applications.
To calculate the total storage capacity of a magnetic disk, you need to multiply the number of tracks by the number of sectors per track and the number of bytes per sector. The formula is: Total Capacity = (Number of Tracks) × (Sectors per Track) × (Bytes per Sector). Ensure you consider the disk's format and any reserved space, as this may affect the usable capacity.
A hard disk drive is a type of magnetic storage device. A magnetic storage device stores data on a magnetized medium. Other types of magnetic storage includes magnetic recording tapes and the stripes on credit cards.
Magnetic storage optical storage solid-state storage storage capacity
The floppy disk which is commonly referred to as a high density floppy disk is a 3.5 inch disk. It has a storage capacity of 1.44 MB.
magnetic
Hard Disk
The largest capacity magnetic tape (as of the time of this answer) is 1 Terrabyte.
The maximum storage capacity of a floppy disk that uses the 64kb keyword is 64 kilobytes.
1 Gb
Magnetic storage is used on hard drives and floppy disks. Sectors of the disk are charged magnetically and are easily changed later. Optical storage uses a laser to read data. On a cd/dvd, the laser picks up tiny marks made starting in the center and rotating outward.
Floppy disks use magnetic disk to store the data.